Stapling device for upholstering



Dec. 13, 1949 D. PIERI I 2,491,277

STAPLING DEVICE FOR UPHOLSTERING Filed Dec. 11, 1947 2 Sheets-Sheet 1 ATTORNEY Figure 1 illustrates the stapler in its initial p'osition relative Patented Dec. 13,1949

s'rArLrnG p'svlon FOR UPHOLSTERING 1 Din Application December 1 2 Claims.

This invention relates Tto'stapling 'toolsfor stapling edge rolls 'to edge wires encountered in upholstering? The'primary object of the invention is to provide a stapling tool that can be operated by one person with'a minimuml' amount of effort and a saving of time. a v

Afurther 'objectof the invention is to provide a hand stapler that will staplethe'edge rolls on edge Wires-ofmpholstered furniture instead of sewing the roll to the'w'ir'eI 4 These and other incidental-objects Will be apparent in the drawings specifications and claims.

toan edge wire and edge roll before stapling.

Figure 2 illustrates the staple having been forced through the bead in theclinc pcr tion.

Figure 3 is a detail fragmentary view illustrating how the staple holds the edge roll in place after the stapler has been removed therefrom.

Figure 4 is a fragmentary detailed side view of the head of the stapler, cover plate lining removed for convenience of illustration.

Figure 5 is an inverted sectional edge view taken on line 5-5 of Figure 4.

Figure 6 is a sectional end view taken on line 6-6 of Figure 5.

Figure 7 is a detail sectional view taken on line 1-4 of Figure 4. This view has been reversed end for end in Figure '7 from that shown in Figure Figure 8 is an enlarged detail sectional view taken on line 8-8 of Figure 7 illustrating the staple magazine out of alignment with the head of the stapler to reloading position.

Referring more specifically to the drawings:

My new and improved stapler consists of a main body I, having a cover plate 2 removably secured thereto by suitable fastening means as screws 3. A handle 4 is secured to the body of the stapler by cap screws 5 and supports the stapler when applying the same to the work.

A handle 6 is secured to a cam actuator 1 which is pivotally mounted to the body of the stapler by the cross pin 8. A bar 9 is slidably mounted within a channel l formed in the body member I. A transverse pin H is fixedly secured to one end of the bar and has a roller l2 rotably mounted thereon and cooperating with the cam slot 13 of the cam actuator I. The opposite end of the bar 9 is offset at M and has a staple bending anvil Pieri, Milwaukie, Oregz, assignor of one-hall! to 1bert'Ambrose, Portland, Oreg.

1, 1947, Serial No. 791,026 7.

' I I formed on the goose neck I6,.best illustrated in be described later.

Figures 1, 2 and 4, the operation of whichwill A plunger assembly I1 is 'slidably mounted within the channel 18 of the body member], having its end I 9 extending beyond the body member for engagement with the cam 20 that is carried by the cam'actuator 1, best illustrated in Figures 1, 2 and ,4,,,The OPDQSite 'en'd" 2"|,*of the plunger l1, contactsjthe staplesj22 at 23. The end 2! of theplunger' I1 is guided in line with the bottom staple22' by a bearing'r'ilate 23 that is carried by the cover plate 2i w Referring to Figure 5, it will be noted that the end l9 of the plungerg lflhasfan offsetlug'or'jpin 24 against which the spring "25; engages 'oniyits one end, while itsjoppositeend 'is adjustablypositioned jby thefhscrevg r 26.' jThisi returns; the 1 plunger tow rdlhfi am; 2.6? a clia ay e the staples after each stapling operation:

The staples 22 are delivered to the end 23 of the plunger from the staple magazine 2'! by way of the plunger 28 bearings against the staples by the spring 29. The magazine 21 is secured to the cover plate 2 by the screw 30 and is swingable about the screw for recharging the magazine with staples as illustrated in Figure 8. A locking screw 3| engages the notch 32 of the flange 33 of the magazine when the magazine is in line with the staple opening 34 of the cover plate 2 through which the staples pass from the magazine into alignment with the end 2| of the plunger l1.

Located on the cover plate and formed integral therewith, is an ofiset guide member 35. The object of this guiding member is to guide the stapler relative to the edge wire 36 of the spring assembly 31 in the upholstering operation, best illustrated in Figures 1 and 2.

I will now describe the operation of my new and improved stapling tool, first the guide member 35 is placed against the edge wire 36 of the upholstering assembly by the operator holding the handle 4 of the tool forcing the same against said edge wire. With the other hand he will grasp the lever 6, pulling the same in the direction of the arrow, after the edge roll 38 is in place. Thus the guide 35 guides the tool relative to the edge wire 36, while a staple 22 is being pushed through the edge roll 38, as shown in Figures 1 and 2.

When the lever B is first moved, in the direction of the arrow in Fig. 1, the cam slot l3 will pull the bar 9, moving the staple anvil l5 against the edge roll 38. After the approximate point 39 of the cam l3 reaches the cam roller l2 the cam 20 will engage the end IQ of the plunger I! which will force the same in the direction of this arrow (Fig. 2) causing the end 23 of plunger H to engage the inner staple 40, forcing the same out, as best illustrated in Figure 2, straddling the edge wire 36, passing through the edge roll 38, engaging the forming surface 4| of the anvil l5, reversing the ends of the staple back into the roll. This completes the operation of stapling, the lever 6 is then brought to the starting position, as indicated in Figure 1, and the tool disengaged or reset along the edge roll, Figure 3 illustrates the approximate position of the staple after the operation of stapling.

It will be noted from the above description that the staple forming anvil moved towards the body of the tool previous to the outward movement of the staple through the edge roll, the object of which is to first compress the edge roll so that when the staple is driven through it will encounter a solid-like material which assists in the proper forming and clinching of the staple and also the holding and positioning of the edge roll relative to the edge wire 36. In other words the edge roll is first placed accurately relative to the edge wire then compressed and held securely in the proper position while the stapling is being performed.

I do not wish to be limited to the exact mechanical structure as other mechanical equivalents may be substituted still coming within the scope of my claims.

What I claim is:

1. A stapling tool for use in upholstery comprising a frame formed with two guide channels, a bar slidably mounted in one channel and provided at one free end with an anvil having two adjacent curved surfaces, a plunger mounted in the other of said channels and having a free end disposed opposite the anvil, means for supplying a U-shape staple in front of the free end of the plunger, and a single operating means including a cam for first advancing the anvil toward the plunger, and a lug for subsequently advancing the plunger and staple toward the anvil to drive the free ends of the staple.

2. A stapling tool for use in upholstery comprising a frame formed with two guide channels, a bar slidably mounted in one channel and provided at one free end with an anvil having two adjacent curved surfaces, a plunger mounted in the other of said channels and having a free end disposed opposite the anvil, means for supplying a U-shape staple in front of the free end of the plunger, a single operating means for first advancing the anvil toward the plunger, and subsequently advancing the plunger and staple toward the anvil to drive the free ends of the staple, said means including a cam for moving said anvil and a lug for moving said plunger in one direction, and a spring for biasing said plunger in the opposite direction.

DINO PIERI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 643,937 Boggs Feb. 20, 1900 2,037,461 Drypolcher Apr. 14, 1936 2,218,934 Germain Oct. 22, 1940 FOREIGN PATENTS Number Country Date 786,054 France June 3, 1935 

